Sierra Space
8401 Murphy Dr, Middleton, WI 53562
Present in a source dataset, with no recent operating signal.
What they make
Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing336415Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Just in Time Machine CORP | Middleton | Machine Shops 332710 | ACTIVE | 2.0 KM |
| Printed Aerospace INC | Monona | Aircraft Manufacturing 336411 | ACTIVE | 15.6 KM |
Also at this address
No other federal record shares this street address.
Where this record comes from
2 sources hold this plant, and 7 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.
EPA cross-references this facility in RCRAINFO, WI-ESR · EPA site type STATIONARY.
- EPA ECHO compliance recordsOPERATINGfirst seen SEP 2023 · last seen SEP 2023
- EPA Facility Registry ServiceEXISTENCERecord 110070524041 · first seen MAR 2019 · last seen MAR 2019
IN DANE COUNTY3 other plants share this one’s industry (Aerospace Product and Parts Manufacturing, NAICS 3364); 0 of them have a size band on record.
What each source says
Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.
- Name
- EPA: SIERRA SPACE · OCT 2026
- Street address
- EPA: 8401 MURPHY DR · OCT 2026
- City
- EPA: MIDDLETON · OCT 2026
- State
- EPA: WI · OCT 2026
- County (FIPS code)
- EPA: 55025 · OCT 2026
- Coordinates
- EPA: 43.09846,-89.52888 · OCT 2026
- Hazardous waste generator (RCRA)
- EPA ECHO: VSQG · OCT 2026